package com.scofield.glidedemo.transform;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Matrix;

import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;

/**
 * 图片加载旋转
 * @author scofield@tronsis.com
 * @date 2016/9/29 11:02
 *
 */

public class RotateTransformation extends BitmapTransformation {
    private float rotateRotationAngle = 0f;

    public RotateTransformation(Context context, float rotateRotationAngle) {
        super(context);
        this.rotateRotationAngle = rotateRotationAngle;
    }

    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
        Matrix matrix = new Matrix();
        matrix.postRotate(rotateRotationAngle);
        return Bitmap.createBitmap(toTransform,0,0,toTransform.getWidth(),toTransform.getHeight(),matrix,true);
    }

    @Override
    public String getId() {
        return "rotate" + rotateRotationAngle;
    }
}
